Typewriting machine



March 30, 1926. 1,578,446 A. G. F. KUROWSKI I TLE'EWRITING MACHINE Filed Oct. 6, 1923 2 Sheets-Sheet 1 Patented Mar. I I I I I ITE Stages v arsers mg;=;;

ALFRED G. F. KUROWSKI, on BROOKLYN, NEW YORK, nssiornon T unnnnwoon' Tyra- WRITER COMPANY, on NEW YORK, Y., A oonroaa'rion or DELAWARE. v v

TYPEWRITING MAC INE; f Application filed October 6, 1923. Serial Ira-season I To attic-7mm it 'ITLCl-j/ concern: bulging or bending of the-cards between the Be it known that I, Amman G. F. side-marginsthereof. I 7 f Knnowsiri, a citizen of the United States, a A feature of lie invention is the provision residing in Brooklyn Borough, in the in a front-strike typewriting machine," 11w county of Kings, city and State of New ing front-pressure or feed-rolls belowfthe 60 York, have invented certain new and useful printing line, of a detachable card-holder Improvements in Typewriting Machines, movable across the place normally occupied of-which the following is aspocitication by such front rolls, and of means for dis The invention relates to card-holders, placing'such rolls from their normal posiand associated mechanism, for typewriting tion' preliminary to placementjof the card- 65 machines; that is to say, to neanswhereby holder on the machine. I I r without undue bending thereof,cards, such Other features and advantages will here- "forinstance as stencil-cards having rela' ina'fter-appeanf I j tively stifi'inarginal strips, may be held to In the accompanying drawings, I I

the planten and be line-spaced over the Figurel is a view, in front elevatioln of 7 same. I the platen-frame and associated parts of a "A11 object of the invention is the provi- I typ'ewriting machine embodying theipresent fsion of novel and simple means for deinvention. W

tachably securing thecard-holderand asso- Figure 2 is a top plan view of the ap- 2o ciated parts to the platen-frame, so that, paratus shown in Figure 1'. I J, 5

with expedition and with little or no I "Figure 8 is a' view, in perspective, ofthe', trouble, it maybe applied as a unit'to the left-hand side of the card-holding device, I

machine whenits use is desired and be Figuret is'a view, in left-handfendele-y dismounted therefrom when the machine vation, of the card-holding device in its nor-- is to be used for other purposes; all withmal or idle position on the platen-frame,

out modification of standard parts vof the preliminary to commencement of stenciling. machine. I Figure '5 is a view similarfto Figure i,"

A further object of the invention is the except that the card-holding device has been I provision of novel and simple means for, line-spaced upward and the line-space mech-- line-spacing thecard-holder from the mech-' anism is shown'as in'Y the act ofeompletin-g I anism normally employed to line-space the the last upward feed of-the stenciling device.

I platen; and in this connection: a vfeature of Figure 6 is a view, in. left-handelevation. the invention, in the, preferred form thereof, talren on the line GI -6 of Figure 1.. 1 is the provision of means Wherebybthe line- Figure 7 is a view,-i endelevation, showspacer may be rendered ineffective to line ing more particularly'the parts of; the linespace the platen and nevertheless be utilized space mechanism for line-spacing the platen. to line-space the card-holder, when the lat- Figure 8 is avievv of theleft-hand 'end of ter device is applied to the machine. I I I the platen-axle showing the clutch device for A feature of the invention is a clamp for connecting and disconnecting the platen to 40 securing to the card-holder a celluloid backand from theline-space mechanism. I

v ing for the stencils, and for securing the V The platen 10 is fiXed-to-an axle 11,jour-' backings in such manner that the same may naled -in the sideplates 1.2 of the platen be quickly and easily placed and'replac'ed'on frame. The platen may be rotated: by the card-holder. i means of the usual finger-wheels 13, or by V Another feature vof the invention is'the means of aline-spaceratchet wheel14aThe mi provision on a card-holder, of the general latter may turn freely without movement character mentioned, of adjustable sideof the platen, or maybe locked to the T marginal gages for the cards. platen-axle to cause the platen to haveflllna Another feature of the invention relates to .feed rotation when the line-space mech- 5 a curved formation of the upper reach of the anismis operated. A finger-piece 15, mov'- card-holder-frame Ito provide clearance for able inland out longitudinally of the left the operators fingers in the insertion and hand, end of vthe laten-axle, operates removal of cards v I 4 clutel1-device, not .siown, for locking the A feature of theinvention is the provision ratchetwvheel to the platen and for reof means on the cardholder for preventing leasing the from the l ne space ll? here.

imechanism. This-clutch devicemay he that shown 1n Unlted States Letters 7 p Patent to Helm'ond, No, 1,150,366,' :lated August 17, 1915, ll-K1 89 is riot-descrihed i-n detai-h The lineespace.anechamsm tor retatlng the ratchet-wheelie, which finay he that found in' the Underwood standard typewriting machine, comprises a slide-or plunger 17 movable forward and backward on the,; left+hand frame-piece 12 andcarry 7 ing a pawl '18 torjengagemento with the teeth of the rat'chet,wheel. A spring 19, securedat v2O to the slide 17 andsecured at21 to theside piece '12,1lacts" to hold the slide :"forward finite normal position. and tortreturn it to such. position when fire to dose. A line-spaceflever, in the forinot a hell-crank 22 pivoted at 23 to the side piece 12, has, oneiarm 24 thereof disposed for engagement with an offset 2-5 on the forward end ofthe slide 17; so that, when the lever 22is thrown to the, right, the

' slide ismoved back against the action of the spring 19 to'efieet line-feed the 'ratchet wheel; springedetent 26, hy-engagement with theteeth of the ratchet-wheel, holds accidental rotary the latter against placement. s s 0n the platentrame, at the rear of the j platent0 feed the Work-pieces infthe erldinary use of the machine. These pres? sure-rolls are on rear shaft 31 and forward 1 shaft (not shown) demountahly supported .40

in the arms of levers 83 and 3 l, ,pivcte( on a shaft whichv is carried "by the end pieces 12 of thefplaten-frame'; so that, by rocking these levers, the-"pres'ure-rolls may he released from the platen and thrown tothe platen. The mechanism whereby the .pressure-rolls are released and reapplied may he thatshown in United States Lettersl'PTatent to McLaughlin, No;'.739',1()2,

g dated September 15, 1903, to which" refertosay thatthelever 33 comprises an: arm

I 'ence is made forsuclrdetailed explanation V p on the platen-frame, the locking hladesA-t thereof as may be, desired. Suffice here 36, and the lever '34 fanv arm 88, "which: normally, rest on the opposite s de of flats'eut into a rock-shaft- 37, which later shattmay be turned hyyconnections to a finger-piece conveniently located on the platen-frame.

' The structure is such that after the pressure-rolls have been thrown offthe platen "by .the mechanism referred-to, the roll-supporting fingers 34 may he ,QiiVena farther downward and forward pull to" ajpo'sition s permitting the, ,ttront-press'ure=roll'*shaft to he lifted therefrom, so that, as hereinafter 'explainechthe .front pressure-rolls may not ward -'pressure of one interfere with the 'pio sitioningzj and move ment of the withholding device when' the machine is to be transformed fronrits ordii nary uses the use thereof lOI'JStQKlCIl-IBQ'.

As here'inl-iel o-re mentioned; the card-holding device, including all parts thereof and actuating-mecl1anism therefor, may he at? 7 fixed asaunit t0v the platen trame and remov-ed as a unit therefrom, according to the intended use ofthe machine. It therefore has its own trameqnemhers, which con sist of flat-end plates 39 which are-tied together by a rod 40,'adapted,t0he set'upon I the usual flatupperottsetsj or-flangesl of the side p eces 12 otthe platen-itrauiex The cardaholder frame-plates 39 are centered on the platen-frame plates 12 by means of card-holding device is in place,- are held in the position shown in Figure 2, tolock the cardholding deviee'to the platen trame,

by means of springs whichconnectdownturned ears 46 on the bladeswith downturned ears47 on the frame-plates 39, and

thus maintain the blades in theundercuts of. the studs 42. By means of fingerpieces 48 on the blades, the same may he rocked laterally Within the limits defined to the plates, to unlock the forward ends of the plates 89 from theplaten side pieces Thumb-screws '50:," passed through "holes in the cardliol-der frame-plates '39, near the rear thereof, and "threaded intothe'platenframe side pieces, may he used to hold the card's-holder frame at its rear. to the v platen-frame; 7 When the 7 screws 50 are aremoved and the blades' rocked laterally, the entire; card-holder frame may he lifted from the plateirframehy means of finger-s In the seating-of the the card-holder frame so that, when the blades register with the undercuts, the springs 45 act automatically to lock the frames together upon mere down frame-upon the other,

Journal-ed in depending ears 52 on the side plates 3901. the card-holder frame is arecksha'ft 53. fFast on' -therock-shaft 53 area pair or arms 54"(se-e Figures 2,:3 and 6), which extend "up fronr the rockshaftt53 and thence torward ly well above the platen.- The forward ends of the arms 5 1- are turned downward, as at '55. A

by a pinnnd-slot connection 459 of the blades 7 :pie'cesor cars 51 on the card-holder frame.

of a stencil-card;

thereto.

frame- 56, on which the stencil-cardsai'e directly supported, has upturned cars 57 at'the ends thereof, by means of which it" is 'pivotally mounted at 58011 the ends of .the'arrns 54. Coil-springs .59, secured at one end to lugs 60 on ears 57, and at the other end topins 61 on the arms 54c, serve to hold the frame 56 in such position that the stencil will properly lie against the cross-reach 64, having a central upper bend 65 therein to permit of insertlon oi the operatoris'lingers for placement or removal at each sidethereoflis a forwardly-extendlng car 66 of the general curvature of the platen; and'seeured to the ears 66 are the Vlaterally-projecting ears 6'? of a plate coin- V prising'side PlGOBS 68 'WlllCh extend forward and dow nward to follow the general curvature of the-platen so as :to beset snugly At-their lower endsthe side pieces 68 have soldered to the "front face thereof a thin nietal strip '69, which forms a crossreach and ties to'getherithe side pieces 68 into asingl-e' plate} The side pieces 68, together with the upper cross-reach 64 and i :the lower cross-reach 69, therefore, form a frame with an opening therein which is rectangular except for the bend 65, for theymargin S t-of the stencil-card and prevent operators fingers, at the upper portion thereof. The plate forming thelower cross-. reach 69 of this frame is turned rearwardly around the lower edges of the side pieces 68,21nd is thence turnedupwardat'70 to 'form a pocket or seat for the stencil-cards;

the upturned lip of this pocket-piece 69 70 being spaced sufficiently from the rear faces ofthe framemeinbers 68, to permi of causes the same to snapv 'over'the cardboard insertion of the stencil-cards therebetwee n.

A. celluloid backingpiece is einployedzin conjunction with the eard holding fraine 56, 68 -69. This celluloid backing-piece :71

(see Figure 6) rests at its lower. edge against the-rear face of the pocket-piece 70, and has its upper-edge 7 2' substantially flushwith the upper' edge of the; cross-reach 641. i It is locked to the rear face of thelatter, at each "SldG, by means of a clamp; Each of such clamps comprises aplate73 set upon the,

cross-reachM and pivoted to the latter at 74. Each p1ate'73 has an ear'75 (see Fig ures 3'and 6), which is bent around'the up- 1 peredge ofthe CI'O SS71'eaCh'64:,ElI 1C l which parts are in positionfor insertion of the has a' downturned portion 7 6 sufficiently spaced from the rear face of the erossreach" 64 toreceive theiupper edgeof'the'celluloid- Vhen, by

On the ci'oss1.'each 64,

celluloid backing-"Upon movement of the clamp to the Figures 3 and6 position,the celluloid is locked in place solely by it'supper edge, since the lower edgebears loosely, as aforesaid,against the pocket-member 70.v

A detent"? 8 on each clamp-plate 73, by'engageinent with a corresponding recess in the cross-piece 64 of the card-holder, holds the clamp in looking position.

The upper edge of thecelluloid-.baekingpiece is cut away at 79 so as not to obstruct the insertion of the operatoflsiingers behind the upper margin of the stencil-card, for insertion or 'reholderfranie 56, 6869, and isin position to i receive type impressions. The celluloid backing-pieceforlns wit-lrthe 'i ranre'inenbbers 68, 69 a pocket into which the stencilcard is easily insertable; In inserting the "stencihcard, itis passed down in front ot'the ugper cross-reach 64h ol'- the cardholder frame, 1 and thencedown behind the side reaches 68. Fromthe upper portions'of the side 'ineinbers 68 fingers 83 are turnedilatrally toward each other to overlie the upper the =latter'fron1 bulging between the sidesof the card-holder. WVhen the cards are'thrust,

at 8 6 to overlap theupper edge '87 of the i card. The spring action of these fingers 'margin of the stencil ca'rd at the proper time; The 'detentsare turned forward-M88,

at theirupper edges, so, that the card, upon from its path.

89, secured by screws-90 to'the ears-'66on 1 the card-holder frame-member 56;"The plates 89have also rearwardly-turned ears 91 which serve as side-marginal gages for the'stencll-cards (see Figures 2- and 3)..

To accommodate the card-holders to cards of'diff'erent widths, the plates 89 are jadceive screws 90- on the ears 66 When these ble to desired position and are theirlocked in such position by tightening the screws" It has'been 'statedthat the arms 54 1? the card-holderare on the rock-shaft 53.; This [down intohome position in the card-holder, l

insertioi'ithereof, will canr theifin'gers back The spring-detents 85 are formed on plates justable longitudinally of the platen onthe .ears66"of"thefcard-holder frame. To this a end, the plates 89 are slotted, as at 92, to re 7 screws are 'loosened, the plates 89 are movaitorperi nit the card holder; to; be line spaoed upwardaround the axisyof "the shaft 53.

.'lhecurvature ofthecard-holder is such r :tol-h-ol'd thecardproperly'to the platen, be-

as havingbccnswung down so'that the type V 95. may Write'on the upper portion of the lat- -01" line-spared upward. r

Y c; To effect such line-space;movement ofthe- ;-pivted on the shait53-is anarm- 97 having, ;pivoted thereto, -atfitsztorward end, a pawl 2'98 forengagement'rwith the-teeth 990n the 9 plate 9.6; A coil-spring-'lQO,,connectedto. theamt 19Z-Pancl to thepawl 98, when" free. to

wgper :end of aslot 113 in the segmental ratchthat at leastl fi ve linos may be Writt-enthereon asthe card-h h-ler is progressively stepped "Cill'dillOlElQP fromthe p .atenline-sp ace mech- '411118111.-l1816i30f01'6 described, the following 53iisa-seg1nentaljratchet-plate 96. Loosely dorso, throws the pawl intoiengagement ith the teeth, 1and holdsthe same 7 in operative xengagementwith the teeth. Y lVhenthe arm Y not obst-r-ucted by the ;-frent-*pressure rolls,

97 is forced. to its lowermost;position,'however, a-dog 101-011 the: pawl, by engagement with apinilOQ on'a bracket 103 depending :fnom ?the' .side 1 piece '39 of the card-holderfra1ne,-causes the pawl to-be rocked and held outof =-engagement with' the- -teeth 99. A leafispring'mt, bearing on the 1 upper edge Y act the arm 97andj secured to-i a pin 1 on :thecardL-holdenfrietme side piece 39, presses vdown the arm 97 to releasegthe pawl- 98 from :the'teeth 99 and to hold thepawlnormally -1 out .ofengagement with theteeth 99 against the action otthe-spri-ngflOO; the leaf spring than the 104,-, *being sufiicientlystronger wsprihglOOto efiectthis result, y J The :ar-m' 97, at its-forward end, 1s turne -;up-at'106, andfis thenceturned leftward at 107, and downward at a 108, to :form a U (see hlli'gures 1' and :The downturnedportlon 54:08 of this'UrineinberflseeFigure 4L)nor- Y inally l-iesin the path olt rearward movement of the ofiset on the forward-end of the plateneline spacezslide 17. This downturned V Qkedge 1109,;against which the-slide 17 acts Y "whenithe same is thrust' rearward. I It 'foll-OWStl'I&t,irl1p01I*IGWJWZHC]; thrust of the slide 7 f 17 01 operation hi the linerspace lever '22, ire-arm 97 is rocked upvv'ard,-as shown in;

U portion 108 hasa1s0- an inclined or cam *Fig-ure 15, 1 against :the action of the leafq spring '104. $1 116 first effect of-this upward 1 I a 'rnovement is to: release the pawl sowtl' at 1t: rm-ayrengagethe' teeth 99 on -the segmei'it-plate '60 .t i

" Thereupon, the {forcible tipwarclmovementyof the-.yarin 97, bymcan's of the slide f "17, :causes-the T segment-plate 96 *to move up,

andfby: means of; the shaft'l 53;. to Whichit is movement willwbe a one-step. linespace 1n;oveine1 1t.-' Uponr re lease of the line-space lever, thefspring 104 I throws the arm 97 back to its normahposition ,that isto say, into position for engage 'Y ment of thepawl 98;Wll3ll the next succeedrng tooth 99 upon the next operationiof the line-space lever. A s pring -detent 110, by engagei'nent with the teeth'c99, may serveto hold the seginent plate 96 and (Ru'CLllOldO I,

against accidental displacement, in the posiposition of the cardholder may bedeterminedby engagementof-thepin-105 on the card-holder frame side; piece P89withthe upet-plate 96. Movement: of the, cardholderwiththe card tothiswlowermost position is because, as heretofore explained, these rolls "have been i removed prel-iminary'ito the use Y of, the Y machine: with the cardholder. En Y Itionito which thcyliave been line-spaced. I lrfter stencilingonga card hashes-n cotm- Y pleted,;and whentheystencihcard has been 7 removed and replaced by another cardjthe gagement of pm with the lower end of the slotlla may determinethe uppermost 1 position to which the Y cardholder maybe moved. Y 1 y. H Q As line=space movement of-{thePlatenis unnecessary-in the ,useof't-he present 'in- V vent-ion, the IfiitCllQt-WllGGl 14, "as here1nbe-' fore suggested inay be unlocked' fromythe :platen so "thatoperation 'ofjgthe line-space lever 22,-.to lineefeed thercard holder,"Willhave no e-fl'ect upon-the platen. -';l:hisamakes" *easier the efiort of' lineespacing Lathe card- "holder, and permits the rear -pressurerolls to be: left inc-their normal po'sition against 110,

the, platen. v

. Variations may 'be'r'esorted ,to: Within "the, Y

scope ofcthe inventi:on,qand .portionsiofithe' ii'nprovements:mayrbepnsed without others :I I'amngit hus described myw1nvention,* I 1 claim: I

1 1. I11 a typewritingmachine, acylindrical; Y

;. platen,' a card-holder:curved over the face of V c the "platen; means for; pi vo-tally supporting V I the cardholder:- behind :the plateiyja segratchet with the card-holder, and mechanism *foiline-spacing thelplaten comprisingmeans forzact-uating tliQll-IiO-SPLCG-Hllfi of the card- -hOlder... c Y

" 2Q Ina typewriting machine,a cylindrical-Y platen, a card-holder curved over the face of the platen, means for the card-holder :behin the p mental ratchet fast to Q the maehine frame, a

piv ojtally supporting: aten, a eg- .t v 1 :;1nental ratchet rast :torthe maclnne frame," n

a -a pawl-carrying arm" for; line-spacing I the pawl-carrying arm for *line spacing; the

ratchet with the card-holder, mechamsmfor the platen, means an arm pivotedfor movement with respect to the" ratchet and carrying apawlfor engagement Withthe ratchet, and a plunger for engagementwith the arm to rock the same, and thereby effect line-space-movement of the 5 ratchet with the card-holder.

4. Ina typewriting machine, a cylindrical I platema card-holder curved; over the face of the-platen, means for-pivotally supporting the card-holder behind the platen, a segmental ratchet fast .to the machineframe, an arm pivotedfor movement with p respect to the ratchet and carrying a pawl for engagement with "the, ratchet, and a V platen, a card-holder curved over the face plunger P for engagement with the arm to rock'the same, and thereby effect line-spacemovement of the ratchet with the fcard holder,'-the pawl-carrying arm having a cam thereon in the path of theplunger, and by 7 means of which thear-m is actuated by the plunger.; I I I I 7 5.111 a'typewriting mach1ne, a,cyl1ndrical of the platenyineans for pivotally support- 7 mg the card holder behind the platen, a

segmentalratchet fast to the' machmef 1 frame, an arm pivoted for novement with respect to the ratchetand-carryinga pawl foren' 'a 'ement with the ratchet a alun er D b V 7 b for engagement with the arm to rock the same, and thereby effect line-space-movement of the ratchet with the card-holder, a

I spring for returning the arm tonormal p0sition after each 1ine space-movementl thereof,

; and a stop against which the pawl is thrown and released from the ratchet upon movement of the pawl-carrying arm by the Spring ii, 1 .w I i 6. In a typewriting machine, a cylindrical platen, a card-holder curved over the face of the platen, means for pivotally supporting the card-holder behind the platen, a segmental ratchet fast to the machine-frame, an arm pivoted for movement with respect to the ratchet and carrying a pawYfor engagement with the ratchet, a. plunger forv ven- 'agement with the arm to rock the same, and thereby effect line-space-movement of the ratchet with the eard-holder,a spring for returning the arm to normal position after each line-space-movement thereof, a

stop against which the pawl is thrown and ratchet upon such movement" the platen-frame Tfor released fromthe ratchet upon. more inent fof/ a the pawl-carryingarm by the spring, and-fa weaker spring for throwing the pa ra the of the arm with the pawlas lclears the pawl from the 7. In a typewriting machine, a cylindrical platen, a card-holder 'cnrvedover the face of the platen,- means for pivotally supper 'ing the cardholder for movementin linespace and return directions over the-"face of the platen, a segmental ratchet fast to the machine-frame,;'-Ia pawl-carr in arm for line-spacing "the ratchet --with"the cl'ardholder, :a cam on the-a m, and a plunger for engagement with the camto r'ock theiarm in line-space direction; r i

8. In a typewriting machine, a cylindrical I platen, a frame for ,theplatema card-holder curved over the face of'the platen, a' frame for the card-holder, a rock-shaftj-on' the card-holder-frame, means by v'vhich the card holder is made fast to the rock-shaft,-

a' segmental ratchetl'fast to' the machine V frame; a pawl-carrying arm loo sel y pivoted V on the rock shaft for linespacing the actuating the'arm. I a 9. in a typewrit ng machme, a cylindrical platen, a frame for-the platen,a card-holder card-holder is made fast to the rock-shaft, v

a segmental ratchet fast to themachineframe, a pawl-carrying arm loosely pivoted on the rock-shaft *for line-spaGingythe' ratchet with "the card-holder, -II1B2L11S-OI actuating-the arnnfand means -fo"rdetacl1-" 1.05 7

ably securing thej' cardholder-frame with;

ratchet With the cardholder, and means for theelements thereon annit to-lthe platen- ,7

frame.

10.; In a typewriting machine, aJcylin dricalplaten, aframe for tl'ie' platen, card-holder curved over 1 thegjface ofa'the pl atenf a frame for the card-holder, a; rock shaft on the.eard-holder-frame, means by which the card-holder is ma de fast 1 to the roc'leshaft, segmental ratchet fast to the machine-frame, a pawl-carrying arm loosely pivoted ion the rock-shaft for *line-sp acing the, ratchet witli the card holder,i*-and J'ai plunger movable backward and-forward on actuating; said arm, 1 '11. In a typewriting machine, a cylindrical platen, a frame for the platen, a card holder carved over the face of the platen, a frame for the cardholder, a rock-shaft on the card-holder frame, means by which the card-holder is made fast to the rock-shaft,

a segmental ratchet fast to the machine-a frame, a pawl-carrymgarm looselypivoted 'on the-rock-shaft for linerspacmgthe rachet' with the card-holder, and r a plunger movable backvvard and forward on the platenframe for actuating said arm, the arm, having a cam thereon in the-path of the actuates the arm.

plunger, and by means of which the plunger 12, [In a-type-writing machine, a 'cylinclrical platen, a frame for the platen, a cardholder'curved over the face of the platen, a frame for the card-holder, a rock-shaft on the cardholder-frame, means by which the card-holder is made fast to the rocleshaft, a segmental ratchet fast to the machine:

' frame, apawl-carrying arm loosel pivoted on the rock-shaftfor line-spacing t e ratchet with the card-holder, and-line-space mechanism for the platen Comprising aplu-nger for actuating said arm.- V

13. In a typewriting machine, a cyl ndr cal'platen, a frame for the platen, cardholder curved over the face of the platen,

a frame for the card-holder, a rock-shaft on the card-holder-frame, means'by which the "card-holder is made fast to the rock-shaft,

a segmental ratchet fast to the vmachine-1 frame a 'a'wl-carr in arm loosel )ivoted on the rocks'h-aft for line-spacing theratchet with the card-holder, line-space mechanism 3 for the platen e'amprising a plunger for actuating said arm, and means for rendering the plunger ineffective to line-space the platen while maintaining the same in effective relation for actuating said arm,

1 14. In a typewriting machine, a cylindrical platen, a stencil-card holder mounted for line-space movement with respect to the platen, means. for releasably clamping a cellul oid backing sheet to the card-holder, between the stencil-card and the platen, and means for line-feeding the card-holder rela-, tively to the platen, such clam-pfcomprising an arm pivotally mounted on the card-1 'holder, andghaving'a clip: adapted to em-Q- brace one edge of the card-holder and a 7 corresponding edge of the celluloid back ng whenthe arm is rocked to effective position.

15,,In'a typewriting machine, a platen, a card-holderrmounted for line-space -1novement with respect: toftheplate'n, means for clamping a celluloid backing sheet to the card-holder, such clamp comprising. an arm pivotally mounted on the card-holder, and

.having a clip adapted to -embrace one edge of the card-holder and a correspondingv edge ofthe celluloid- .backi-ng When the arm is 'turndirections over the faceflof 'Whereby the card-holder: may also have rocked to, effective'position, andj'a detent. on r the arm ."for, automatically .lockingthe in effective: position against accidentaldis-v placement.

16,. In a typeWrit-ingmachine, a platen,

a card-holder. mounted for line-space-move-; ment' with respect to the platem means for clamping a celluloid backing sheet to, the card-holder, such clam-p, comprising an arm pivotallymounted on ,f the cardholder, and

having a clip adapted to embrace one edge of the card-holder andacorrespondingledge of the celluloid backing} when the arm is rocked to @effectivepos'ition, and a detent on the arm for automatically locking the arm in effective position against accidental; displacement, by spring-pressure into ai ;h ol e' thecard-holder, V p

717. In a typewriting machine, platen,

a cardeholder mounted for movement in 1 linespace and return directions over the face of the platen, and adjustable side marginal gages for the cardson the card holder, such side marginal gages having agflixed thereto spring-clips adaptedto, snap over the upper edgevof the card, automatimovement inward and outward towardv and a frame forthe platen, a card: holder, means for supporting the card;

seat itself with respect tothe platen, and

resilient. meansfor urging the card-holder toward the platen, properly to with respect to-the latter.

19; In a typewriting-machine, a 'cylindri f a card-f holder, a shaft behind the platen, and arms on the shaft for supporting the card-holder,

for oscillatory movement inline-spaceand' cal platen, a frame for the platen,

return directions over'the face of the platen, the card-holder being pivotally connected seat itself tot-he arms for movement toward and from Y the face of the platen, properly to be seated with respect to the latter. 5

' FRED e. r. KUROWSK-I.

from, the face of the. platen, properly to, 9' 

